- SPMI bus system-level power management
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Efficient PowerWise ® Voltage regulation in AVS adaptive technology and DVS environmental smart energy management
- Two digitally programmable buck regulators in a dual supply voltage domain of 3.6 MHz
- Fifth, such as programmable LDO system functions:
- PLL/clock generation
- I / O
- memory
- Internal soft start
- Sequenced variable regulated power supply.
illustrate
is the LP5553 power management interface for a system （SPMI） Compliant with energy to reduce power consumption and low power holdings for low-power holdings, such as dual-core processors and DSP applications.
The LP5553 contains 2 advanced, digitally controlled variable voltages to provide an SoC step-down DC/DC converter. The device also integrates five programmable low-dropout, low-noise linear regulators for driving I/O, peripheral logic blocks, auxiliary system functions, and keeping memory in shutdown mode (dual domain).
While LP5553 implements 2 non-requests through the ability to control slaves through SPMI. Operates and cooperates with LP5553 PowerWise ® AVS technology is compatible with processors to optimize supply voltage adaptability (AVS - Adaptive Voltage Regulation) to process and temperature variations. It also supports dynamic voltage scaling (DVS) using pre-characterized lookup table frequency/voltage pairs.
Main specifications
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2.7 to 4.8V Input voltage range
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± 2% (typical) Output voltage range
Programmable DC/DC buck converter
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800 mAh The output current is a DC/DC converter
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Up to 88% efficiency
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Digitally programmable From 0.6 to 1.235V
Programmable low-dropout regulator
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Five Digitally programmable LDOs
apply
- GSM/GPRS/EDGE and UMTS cellular phones
- Handheld radio stations
- Pocket PC
- Battery-powered devices
- Portable instrument
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